Relay device.



A, ORLING.

RELAY DEVICE.

APPLICATION FILED 001a, 1911.

\ 1,082,092, Patented Dec. 23, 1913.

HVVE'NTOR;

-M.0 J Ww- I A11 v,

-- erase PATENT oFGE AXEL ORLING, OF TOOTING, LONDON, ENGLAND, ASSIGNOR TO ORLINGS TELEGRAPH INSTRUMENTS SYNDICATE LIMITED, OF LONDON, ENGLAND.

RELAY DEVICE.

To all whom it may concern:

Be it known that I, AXEL ORLING, a subject of the King of Sweden, residing at No. 222 Seely road, Tooting, London, England, have invented a new and useful Improved Relay Device, of which the following is a specification.

This invention relates to an improved relay device whereby a secondary element is caused to undergo a displacement at the instigation of a primary element, the displacement of the primary element being small and derivable from a feeble effort, while the displacement of the secondary element may be a considerable multiple of that of the primary element and the effort available there for relatively considerable.

According tothis invention the relay effort is derived from a force due to the impact on a displaceably mounted surface of a stream of fluid, as for eXample -the impact of a stream of air, on a pivotally suspended surface, in a manner to cause it to undergo angular displacement in opposition to a torsional resistance. The relay force may be rendered operative either by the shifting of a screen which is interposed between the pivoted surface of the secondary element and the orifice through which the stream of fluid issues, the primary element performing the function of displacing the screen, or, alternatively, the desired result may be attained by causing the primary element to interpose in the stream of fluid more or less of a surface on w iich, otherwise, the stream of fluid would not impinge.

The accompanying drawing shows representative examples of some forms of construction embodying the principle of this invention.

In this drawing :Figure 1 shows in isometric elevation, the screen-shifting method of operation. Fig. 2 shows, on an enlarged scale, a plan view of a detail of Fig. 1. Fig. 3 shows a modification of the screen construction. Fig. ,4 shows a compensating contrivance which may be employed in the relay device of Fig. 1. Fig. 5 shows one construction whereby the alternative method is employed to operate the relay by directly Specification of Letters Patent.

Application filed October 6, 1911.

Patented Bee. 23, 1913. Serial No. 653,195.

interposing a surface in the stream of fluid, and Fig. 6 shows another method whereby the function of Fig. 5 can be performed.

Referring to Fig. 1, a is what has been de scribed as the primary element. This is so pivotally mounted by tension wires a a as to be capable of undergoing a small amount of angular displacement under the action of an effort such as would be due to the passage of an electric impulse through a coil constituting the element a, which coil is suspended in a magnetic field represented by the poles N and S of a magnet. The sec ondary element 5 is pivotally mounted, in a like manner to a, on a parallel axis pro vided by the wires 6 Z2 The secondary element carries a surface which normally stands at right angles to the plane which contains the two axes of suspension. On to this surface a stream of air impinges. the air issuing through a narrow slit 0 formed in one side of a hollow projecting arm to which air under pressure is supplied by the pipe 0 Between the surface Z) and the slit 0 the downward bent extremity (Z of an arm (Z is interposed, the said arm being secured to the primary element a. The arrangement is such that in the normal position of the elements, when the coil a is unexcited, the arm (Z screens a portion of the surface of b at and adjoining the axis of suspension, the adjustment being such that the stream of air which impinges on the surface on each side of the axis of suspension has equal effect in tending to angularly displace the secondary element. On the displacement of the screen (5 to either side of the central position, effected by an angular displacement of the primary element a, the moment of the impacting force of the stream of air on one side of the axis of suspension will exceed that on the other and cause an angular displacement of the secondary element. This forced displacement may be utilized to produce a record of the sequence of angular displacements of the primary element on any desired scale of representation, as for example by means of a traveling tape e and a siphon recorder 7 which is secured to the secondary element. The angle of displacement of b may be limited by securing thereto an arm 5 and providing stops g 9 These latter may constitute terminals of electrical circuits comprising a battery it the two poles of which are connected to g g respectively, and the center to a land-line 2' by which an electric impulse can be transmitted to a distant station and recorded there by a recorder indicated by j, the circuit being continued to earth at k and com: pleted from earth at 70 to the suspension wire 6 and thence to the arm 6 In Fig. 2 the screen (Z is shown of wedge; shaped section with the thin end of the wedge presented to the air blast. The effect of this will be to constrain the primary element a from undergoing wide excursions and bring a force into operation derived from the stream of air to rapidly replace the primary element in its central position when the force which causes its angular displacement eases to operate. In this manner the period between successive displacements can be shortened and a high frequency of impulses legibly recorded and transmitted through the land line.

In Fig. 3 a two-part screen m m is shown which, instead of shielding the surface 6 at'the axis of suspension, shields the portions thereof which are remote from the axis, the effect of a displacement from the central position being as before.

The impact of the stream of air on one side of the surface Z) will cause a force to be exerted, tending to displace the surface away from the aXis of suspension. This may be counteracted by the impact of a ct delivered on to the opposite side of the surface through a nozzle 11 as shown in Fig. 4.

According to Fig. 5 the force derived from the impact of a stream of air is otherwise employed to angularly displace the sec ondary element at the instigation of the primary element. In this figure the primary element a is pivotally mounted by the tension wires a cf, the angular displacement of a is transmitted by wires 0 0 to a plate 79 which is pivotally mounted in a frame 9 which is itself, by tension wires g pivotally mounted on a fixed stand 1. Two nozzles s s deliver jets of air which are so directed that both just miss impact with the surface of p, when it is in the normal undisplaced position. If, on account of'an angular displacement of the primary element a, a corresponding angular displacement of p is produced, a portion of the surface of p, on one side of the axis of suspension, will receive the impact of the jet of air-and the secondary elem'entq will be angularly deflected ina forcible manner, enabling a record of the displacement to be produced and an electric relay operated, as shown in Fig. 1.

Fig. 6 embodies the same principle of action as that shown in Fig. 5.

In Fig. 6 theplate p, pivoted in the pivot ally mounted frame q, is itself the primary element, the angular displacement of which is caused to operate the air impact relay. To enable this form of construction to be employed, with facility, it will be advantageous to adopt therewith very portable means for effecting the angular displacement of the primary element. suchaydevice is shown in Fig. 6, it being an electrocapill'ary contrivance which forms the subject of another application for patent whose serial number is 653,19et. This consists of a U-shaped tube t, occupied by electrolyte, into the ends of the arms of which are sealed capillary tubes a a containing mercury, the protruding ends of which abut against two portions of th'e'surface of p which are insulated from each other. An electric circuit comprises a lead '0 to one portion of the surface of p and, from the other surface, a lead a to the source of electric energy and includes the means whereby the electric potential in the circuit is varied. The electric impulse will be transmitted from one plug of mercury to the other through the electrolyte and will, in the known manner, cause a displacement of the mercury in thecapillary tubes and a consequent displacement of the plate p.

The siphon recorder and electric relay described with reference to Fig. 1 may also be combined withthe device shown in Fig. 6;

Iclaim:

1. A relay contrivance, comprising a pri-' mary pivoted element, means for displacing said primary element, a screen carried by said primary element, a secondary pivoted element and a stream of fluid directed to impinge on said screenand on said secondary element.

2. A relay cont-rivance, comprising aprimary pivoted element, means for displacing said primary element, ascreen carried by said primary element, a secondary pivotedelement, a stream of fluid directed to impinge'on said screen and on said secondary element and means for recording displacements of said secondary element.

3; A relay contrivance, comprising a primary pivoted element, means for displacing said primary element, a screen carried by said'primary element, a'secondary pivoted element, a stream of fluid directed to impinge on said screen and on said secondary element and a second stream of fluid directed to impinge on the opposite side of said secondary element to said first stream.

a; A relay contrivance, comprising a primary pivoted element, means for displacing said primary element, ascreen carried by said primary' element, a second-pivoted element, a stream of fluid directed to "1111- In testimony whei'eof l have signed my nin e on said screen and on said seconder name to this s ecification in the )resence of element, a second stream of fluid directed to two subscribing Witnesses.

impinge on the opposite side of the second- AXEL ORLING. ary elementto said first stream and means Witnesses:

for recording displacemenis of said second HERBERT D. JAMESON,

ary element. Rom. C. A. BLAKE.

Q'kmies oi this atent me be obtaiue for five cents each, e addressing file Jommissianer of 'Paients,

P y 5' Washington, I). C. 

